Furnace-roof construction



June 3 W24.

, 3,4963% F. B. BIG ELOW FURNACE ROOF CONSTRUCTION Filed Des; 5;. 192;

arches from above in such a manner that' patented Junie 3, 1924,

" T'Es FRANK B. BIGELOW, OF DETROIT, MICHIGAN.

FURNACE-ROOF GONSTRUCLLION. v

Application filed Decemberfil, 1923. Serial No. 683,557.

T 0 all whom it may concern Be it known that I, FRANK B. BIGELOW, a citizen of the United States, and resident of Detroit, in the county of \Vayne and State" of liiichigan, have invented certain new and useful Improvements in Furnace-Roof Constructions, ofwhich the following is a specification.

My present invention pertains to novel means for supporting furnace roofs or brick they may be readily and easily renewed, wholly or in part, and may be adjusted to meet the required conditions.

To this end, in the preferred embodiment of the invention, the pipes or tubes which support the hangers for the bricks rest in saddles capable of easy adjustment as to position on their sustaining beams so that they may be shifted slightly to compensate for variations in the sizes of the bricks and for changes in their positions due to expansion and contraction by reason of the changes in temperature.

Heretofore, it has been customary and usual to mount such pipes or tubes or similar members in registering holes of the supporting beams or bars by sliding them into position lengthwise, but in some instances room for such manner of assembly of the parts is not available and the positions of the mounted pipes are not changeable to meet the variations and irregularities in question.

It is to overcome these and other objectionable features of earlier constructions that the new and improved structure constituting the subject-matter of this application has been devised.

The hangers for the bricks, which are supported from above, are made adjustable in such a way that they can be easily reached and manipulated to modify the effective lengths of the hangers.

To enable those skilled in this art to have a full and complete understanding of this invention and its various structural and functional advantages, in the accompanying drawing forming a part of this specification and throughout the several views of which like reference characters have been employed to designate the same parts, I have illustrated the preferred embodiment of this invention.

In this. drawing:

Figure 1 is a fragmentary vertical section through the furnace roof or arch structure;

' Figure '2 is a vertical section therethrough on line 2-'-2 of Figure 1;

Figure 3 is a perspective view of one of I --the saddles for supporting the pipes carrying the brick hangers; and

igure 4 is an elevation-of one of the adjustable hangers.

Referring to this drawing, it will be perceived that the new furnace roof or brick arch and its sustaining means comprises a plurality of main, horizontal I-beams 11, supported at their ends in any approved manner, and carrying between them a number of small, parallel beams 12, appropriate angle-brackets 13, 13 being employed to fasten their webs together, whereby the larger or deeper beams carry the weight of the small beams and the load on the latter.

The bricks 14 of the main part of the arch, whose top faces are provided with undercut grooves, are mounted either singly or in multiple on shoes 15, the enlarged lower parts 16 of which occupy the undercut sections of the grooves, whereas the apertured ears'17 are accommodated in part in the remaining portions of the grooves with the perforations of the shoes above the tops of the bricks.

Each of these shoes is supported on the hook-shaped lower end 18 of a rod 19 whose upper end portion is threaded and extended upwardl slidably through the socket 21 of a hook-s aped member 22 adapted to fit over and rest on one of the supporting pipes 23.

A nut 24 on such screw-threaded part of the hanger bears on the top face of the element 21, 22 and holds the shoe at the desired elevation, manipulation or turning of the nut effecting the adjustment or variation of the height of the shoe and the arch brick or bricks which it carries.

Inasmuch as these hanger nuts or threaded adjustment elements are positioned above the I-beams and above the pipes they are easily accessible from above and may be turned as required to secure the proper positions of the bricks.

Each pipe 23 rests in the curved seats 25 of a number of registering or aligned saddle the beam if such movement is found to be desirable or necessary.

It will be observed that these saddle or pipe-supporting members are not fixed as to position being in no way fastened in place, that they are therefore readily installed, that the pipes are merely rested on them and may be put into position from above, and that the pipes and saddle members may be moved more or less on their beam or bar supports if needed. a.

The adjustability of the hanger as to length permits the bricks of the arch to be brought and held in proper position or register even though some may be partly burned away and this adjustment may be accomplished with case because the nuts are readily accessible from above the hangers and not below the pipes.

Other portions of the arch or sides of the furnace are shown at 31 and 32 and in some instances it is desirable to leave air inlet gaps between the main arch and these other parts of the structure as at 33 and 34.

The adjustable hangers associated with the bricks directly above permit the sizes of these openings to be regulated with accuracy and nicety.

From an understandin of this construction it will be seen that t 1e means for-supporting the arch are readily assembled and easily manipulated, the structure as a whole possessing great simplicity resulting in economy of construction and installation.

In this application I have presented only a desirable and preferred embodiment of the invention but it is to be understood that the invention is susceptible of a variety of embodiments varying more or less in mechanical construction but all incorporating the fundamental principles of the invention as defined by the appended claims or, stated somewhat differently, many'minor mechanical changes may be made in the structure illustrated and described without departure from the heart and essence of the invention and Without the sacrifice of any of its substantial benefits and advantages.

reeaeoe I claim:

1. In a furnace roof construction, the combination of spaced supporting beams, alined saddle members restin and slidable on said beams len thw-ise the latter, a support resting on sai saddle members, hangers depending from said support, and arch bricks carried by the ower portions of said hangers. r

2. In a furnace roof construction, the combination of spaced supporting beams, alined saddle members resting and slidable on the top surfaces of said beams lengthwise the latter, asupport resting on said saddle members, said saddle members having downwardly extended retaining flan es overlapping the sides of said beams, angers depending from said support, and arch bricks carried by the lower portions of said hangers.

3. In a furnace root construction, the combination of spaced support-ing beams, alined saddle members bearing and slidable on said beams lengthwise the latter and each having a curved seat on its top, a pipe restin ,in said registering seats, hangers depen ing from said pipe, and arch bricks carried by the lower portions of said hangers.

4. In a furnace roof construction, the combination of spaced supporting beams, alined saddle members bearing and slid-able on said beams lengthwise the latter and each having a curved seat on its top, a pipe restin in said registering seats, hangers depen ing from said pipe, and arch bricks carried by the lower portions of said hangers, each hanger comprising in combination a threaded rod adapted to carry the brick or bricks, a sustaining member designed to extend over and be mounted on said pipe and having a socket through which said rod extends, and

'a nut on said threaded rod above and hearing on said member, whereby turning of the nut and rod relatively to one another adjusts the effective length of the hanger.

In witness whereof I have hereunto set my hand and seal.

FRANK B. BIGELOVV. [L. s.] 

